It gets faster. As a result, it also changes its direction.
It slows from c to c/n where n is the refractive index of water
The speed of light though substances is slower than the speed of light in a vacuum. As the light passes from air to water it slows and the ray's path is translated towards the normal to the air/water interface slightly.
the speed never changes
The light will bend as it passes through.
Yes. The speed of light in water is approximately 2/3 the speed of light in air.
It increases.
That depends what it comes out of. If it passes into air from vacuum, thenits speed decreases. If it passes into air from water or jello, then its speedincreases.
The speed of the light decreases, and its wavelength increases by the same factor.
It slows from c to c/n where n is the refractive index of water
The speed of light though substances is slower than the speed of light in a vacuum. As the light passes from air to water it slows and the ray's path is translated towards the normal to the air/water interface slightly.
It happens by the refraction of light.
the speed never changes
it slows down.
No. Light slows down whenever it passes through water. Nothing is faster than the speed of light in a vaccum.
The speed of light slows in water.
The light will bend as it passes through.
Yes. The speed of light in water is approximately 2/3 the speed of light in air.